Year	Percent
1995	3.705
1996	3.624
1997	3.184
1998	3.409
1999	2.905
2000	2.289
2001	2.661
2002	2.817
2003	4.248
2004	3.715
2005	3.269
2006	2.709
2007	2.393
2008	2.062
2009	2.62
2010	1.81